npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

@clownlee/utils

v1.1.2

Published

JS函数库 JS工具库

Downloads

21

Readme

JS 工具函数库

1. 数字类

1.1. isNumber 判断变量是否是数字型

import { isNumber } from '@clownlee/utils';

console.log(isNumber('asd2345.fasd22')); // false
console.log(isNumber('2345.22')); // true
console.log(isNumber('2345')); // true
console.log(isNumber(2345)); // true
console.log(isNumber(2345.22)); // true

1.2. thousandth 数字型转千分位格式的字符串

import { thousandth } from '@clownlee/utils';

console.log(thousandth('2345.22')); // 2,345.22
console.log(thousandth('2345')); // 2,345
console.log(thousandth(2345)); // 2,345
console.log(thousandth(2345.22)); // 2,345.22

1.3. zeroFilling 数字型前补零

import { zeroFilling } from '@clownlee/utils';

console.log(zeroFilling('22', 5)); // 00022
console.log(zeroFilling(33, 6)); // 000033

2. HTML 标签转义,反转义类

2.1. encode html元素转义

import { encode } from '@clownlee/utils';

const html = '<div><h1>哈哈哈哈</h1><h2>嘿嘿嘿嘿</h2></div>'
const text = encode(html)

// text = &lt;div&gt;&lt;h1&gt;哈哈哈哈&lt;/h1&gt;&lt;h2&gt;嘿嘿嘿嘿&lt;/h2&gt;&lt;/div&gt;

2.2. decode html元素反转义

import { decode } from '@clownlee/utils';

const text = '&lt;div&gt;&lt;h1&gt;哈哈哈哈&lt;/h1&gt;&lt;h2&gt;嘿嘿嘿嘿&lt;/h2&gt;&lt;/div&gt;'
const html = decode(text)

// html = <div><h1>哈哈哈哈</h1><h2>嘿嘿嘿嘿</h2></div>

2.3. lazyLoading 无限上拉加载函数(懒加载)

import { lazyLoading } from '@clownlee/utils';

// 要监听的El元素
const signEl = document.querySelector('#sign');

// 盒子容器El元素
const containEl = document.querySelector('#contain');

const io = lazyLoading(() => {
  // http 请求分页数据
  
}, signEl, containEl);

// 停止上拉监听
io.unobserve();

// 开始上拉监听
io.observe();

// 关闭上拉监听
io.disconnect();

3. 数组类

3.1. arrayToTree 数组转tree

import { arrayToTree } from '@clownlee/utils';

const arr = [
    { value: 1, label: 1, parant_id: undefined },
    { value: 2, label: 2, parant_id: 1 },        
    { value: 3, label: 3, parant_id: 1 },        
    { value: 4, label: 4, parant_id: 1 },        
    { value: 5, label: 5, parant_id: 1 },        
    { value: 6, label: 6, parant_id: 5 },        
    { value: 7, label: 7, parant_id: 5 },        
    { value: 8, label: 8, parant_id: undefined },
    { value: 9, label: 9, parant_id: undefined },
    { value: 10, label: 10, parant_id: 9 },      
    { value: 11, label: 11, parant_id: 9 }       
]

const tree = arrayToTree(arr, {
    idField: 'value',
    pidField: 'parant_id',
    childrenField: 'children'
})

3.2. treeToArray tree转数组


import { treeToArray } from '@clownlee/utils';

const tree = [
    {value: 1, label: 1, children: [
        {value: 2, label: 2},
        {value: 3, label: 3},
        {value: 4, label: 4},
        {value: 5, label: 5, children: [
            {value: 6, label: 6},
            {value: 7, label: 7}
        ]},
    ]},
    {value: 8, label: 8},
    {value: 9, label: 9, children: [
        {value: 10, label: 10},
        {value: 11, label: 11}
    ]}
]

const arr = treeToArray(tree, {
    idField: 'value',
    pidField: 'parant_id',
    childrenField: 'children'
})

3.3. findParentTree 在tree数组中找到指定值的父级元素


import { treeToArray } from '@clownlee/utils';

let tree = [
    {id: 1, label: 1, children: [
        {id: 2, label: 2},
        {id: 3, label: 3},
        {id: 4, label: 4},
        {id: 5, label: 5, children: [
        {id: 6, label: 6},
        {id: 7, label: 7, children: [
            {id: 12, label: 12, children: [
            {id: 13, label: 13},
            {id: 14, label: 14},
            {id: 15, label: 15, children: [
                {id: 17, label: 17},
            ]},
            {id: 16, label: 16},
            ]}
        ]}
        ]},
    ]},
    {id: 8, label: 8},
    {id: 9, label: 9, children: [
        {id: 10, label: 10},
        {id: 11, label: 11}
    ]}
]

const demo = findParentTree(tree, 17, {
    idField: 'id',
    childrenField: 'children'
})

console.log(demo)
/*
[
    { id: 1, label: 1, pid: undefined },
    { id: 5, label: 5, pid: 1 },
    { id: 7, label: 7, pid: 5 },
    { id: 12, label: 12, pid: 7 },
    { id: 15, label: 15, pid: 12 },
    { id: 17, label: 17, pid: 15 }
]
*/

3.4. findParentArr 在pid数组中找到指定值的父级元素


import { findParentArr } from '@clownlee/utils';

let arr = [
    { value: 1, label: 1, parant_id: undefined },
    { value: 2, label: 2, parant_id: 1 },
    { value: 3, label: 3, parant_id: 1 },
    { value: 4, label: 4, parant_id: 1 },
    { value: 5, label: 5, parant_id: 1 },
    { value: 6, label: 6, parant_id: 5 },
    { value: 7, label: 7, parant_id: 5 },
    { value: 8, label: 8, parant_id: undefined },
    { value: 9, label: 9, parant_id: undefined },
    { value: 10, label: 10, parant_id: 9 },
    { value: 11, label: 11, parant_id: 9 }
]

const demo = findParentArr(arr, 11, {
    idField: 'value',
    pidField: 'parant_id'
})
console.log(demo)
/*
    [
    { value: 9, label: 9, parant_id: undefined },
    { value: 11, label: 11, parant_id: 9 }
    ]
*/

3.5. deepClone 数组对象深拷贝

import { deepClone } from '@clownlee/utils';
const newArr = deepClone(arr)

4. 防抖节流类

4.1. debounce 防抖函数

debounce(function(name, sex) {
    console.log(name, sex)
}, 3000)('张三', '男')

4.2. throttle 节流函数

throttle(function(name, sex) {
    console.log(name, sex)
}, 3000)('张三', '男')

5. 国密 SM4加解密

import { SM4 } from '@clownlee/utils';
let sm4Config = {
  // encrypt/decypt main key; cannot be omitted
  key: 'JeF8U9wHFOMfs2Y8',
 
  // optional; can be 'cbc' or 'ecb'
  mode: 'cbc', // default
 
  // optional; when use cbc mode, it's necessary
  iv: 'UISwD9fW6cFh9SNS', // default is null
 
  // optional: this is the cipher data's type; Can be 'base64' or 'text'
  cipherType: 'base64' // default is base64
};
 
let sm4 = new SM4(sm4Config);

// Encrypt
let plaintext = '中国国密加解密算法'
let ciphertext = sm4.encrypt(plaintext)
// ciphertext's result is 'j/+HgSpv8RZQI2YtSq0L1RnemiSokMm1VvLHSTt245U='

// Decrypt
let ciphertext = 'j/+HgSpv8RZQI2YtSq0L1RnemiSokMm1VvLHSTt245U='
let plaintext = sm4.decrypt(ciphertext)
// plaintext's result is '中国国密加解密算法'